63481 has 8 divisors (see below), whose sum is σ = 72000. Its totient is φ = 55440.

The previous prime is 63473. The next prime is 63487. The reversal of 63481 is 18436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63481 - 2³ = 63473 is a prime.

It is a super-2 number, since 2×63481² = 8059674722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 418.

It is an arithmetic number, because the mean of its divisors is an integer number (9000).

2⁶³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

63481 is a deficient number, since it is larger than the sum of its proper divisors (8519).

63481 is a wasteful number, since it uses less digits than its factorization.

63481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its digits is 576, while the sum is 22.

The square root of 63481 is about 251.9543609466. The cubic root of 63481 is about 39.8915814007.

It can be divided in two parts, 63 and 481, that multiplied together give a palindrome (30303).

The spelling of 63481 in words is "sixty-three thousand, four hundred eighty-one".